motion detector,pir sensor can detect the infrared rays released by human body motion,the light will be on or off automaticlly Light turns on automatically when motion is detected within the PIR sensor zone and turns off automativally after few minutes.SPECIFACATIONThree detectorsPower source:220V/AC-240V/AC100V/AC-130V/ACPower frequency:50HZ/60HZAmbient light:<20lux~>2000luxDetecting distance:3~ ...